Recherche avancée

Médias (16)

Mot : - Tags -/mp3

Autres articles (80)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Le plugin : Gestion de la mutualisation

    2 mars 2010, par

    Le plugin de Gestion de mutualisation permet de gérer les différents canaux de mediaspip depuis un site maître. Il a pour but de fournir une solution pure SPIP afin de remplacer cette ancienne solution.
    Installation basique
    On installe les fichiers de SPIP sur le serveur.
    On ajoute ensuite le plugin "mutualisation" à la racine du site comme décrit ici.
    On customise le fichier mes_options.php central comme on le souhaite. Voilà pour l’exemple celui de la plateforme mediaspip.net :
    < ?php (...)

Sur d’autres sites (4608)

  • Java.lang.UnsatisfiedLinkError : No implementation found for int [duplicate]

    28 mars 2017, par Muthukumar Subramaniam

    This question already has an answer here :

    I executed youtube watch me android application project. I just add some classes in my project and build with ndk. I got the error like

    java.lang.UnsatisfiedLinkError : No implementation found for int com.ephronsystem.mobilizerapp.Ffmpeg.encodeVideoFrame(byte[]) (tried Java_com_ephronsystem_mobilizerapp_Ffmpeg_encodeVideoFrame and Java_com_ephronsystem_mobilizerapp_Ffmpeg_encodeVideoFrame___3B).

    My code :

    package com.ephronsystem.mobilizerapp;
    

    
public class Ffmpeg {
    

    
     static {
    
        System.loadLibrary("ffmpeg");
    
    }
    

    
    public static native boolean init(int width, int height, int audio_sample_rate, String rtmpUrl);
    

    
    public static native void shutdown();
    

    
    // Returns the size of the encoded frame.
    
    public static native int encodeVideoFrame(byte[] yuv_image);
    

    
    public static native int encodeAudioFrame(short[] audio_data, int length);
    
}

    This is ffmpeg-jni.c

     #include <android></android>log.h>
    
#include 
    
#include 
    
#include "libavcodec/avcodec.h"
    
#include "libavformat/avformat.h"
    
#include "libavutil/opt.h"
    

    
#ifdef __cplusplus
    
extern "C" {
    
#endif
    

    
JNIEXPORT jboolean JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_init(JNIEnv *env, jobject thiz,
    
                                                                 jint width, jint height,
    
                                                                 jint audio_sample_rate,
    
                                                                 jstring rtmp_url);
    
JNIEXPORT void JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_shutdown(JNIEnv *env,
    
jobject thiz
    
);
    
JNIEXPORT jint JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_encodeVideoFrame(JNIEnv
    
*env,
    
jobject thiz,
    
        jbyteArray
    
yuv_image);
    
JNIEXPORT jint JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_encodeAudioFrame(JNIEnv *env,
    
                                                                             jobject thiz,
    
                                                                             jshortArray audio_data,
    
                                                                             jint length);
    

    
#ifdef __cplusplus
    
}
    
#endif
    

    
#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, "ffmpeg-jni", __VA_ARGS__)
    
#define URL_WRONLY 2
    
        static AVFormatContext *fmt_context;
    
        static AVStream *video_stream;
    
        static AVStream *audio_stream;
    

    
        static int pts
    
= 0;
    
static int last_audio_pts = 0;
    

    
// Buffers for UV format conversion
    
static unsigned char *u_buf;
    
static unsigned char *v_buf;
    

    
static int enable_audio = 1;
    
static int64_t audio_samples_written = 0;
    
static int audio_sample_rate = 0;
    

    
// Stupid buffer for audio samples. Not even a proper ring buffer
    
#define AUDIO_MAX_BUF_SIZE 16384  // 2x what we get from Java
    
static short audio_buf[AUDIO_MAX_BUF_SIZE];
    
static int audio_buf_size = 0;
    

    
void AudioBuffer_Push(const short *audio, int num_samples) {
    
    if (audio_buf_size >= AUDIO_MAX_BUF_SIZE - num_samples) {
    
        LOGI("AUDIO BUFFER OVERFLOW: %i + %i > %i", audio_buf_size, num_samples,
    
             AUDIO_MAX_BUF_SIZE);
    
        return;
    
    }
    
    for (int i = 0; i &lt; num_samples; i++) {
    
        audio_buf[audio_buf_size++] = audio[i];
    
    }
    
}
    

    
int AudioBuffer_Size() { return audio_buf_size; }
    

    
short *AudioBuffer_Get() { return audio_buf; }
    

    
void AudioBuffer_Pop(int num_samples) {
    
    if (num_samples > audio_buf_size) {
    
        LOGI("Audio buffer Pop WTF: %i vs %i", num_samples, audio_buf_size);
    
        return;
    
    }
    
    memmove(audio_buf, audio_buf + num_samples, num_samples * sizeof(short));
    
    audio_buf_size -= num_samples;
    
}
    

    
void AudioBuffer_Clear() {
    
    memset(audio_buf, 0, sizeof(audio_buf));
    
    audio_buf_size = 0;
    
}
    

    
static void log_callback(void *ptr, int level, const char *fmt, va_list vl) {
    
    char x[2048];
    
    vsnprintf(x, 2048, fmt, vl);
    
    LOGI(x);
    
}
    

    
JNIEXPORT jboolean JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_init(JNIEnv *env, jobject thiz,
    
                                                                 jint width, jint height,
    
                                                                 jint audio_sample_rate_param,
    
                                                                 jstring rtmp_url) {
    
    avcodec_register_all();
    
    av_register_all();
    
    av_log_set_callback(log_callback);
    

    
    fmt_context = avformat_alloc_context();
    
    AVOutputFormat *ofmt = av_guess_format("flv", NULL, NULL);
    
    if (ofmt) {
    
        LOGI("av_guess_format returned %s", ofmt->long_name);
    
    } else {
    
        LOGI("av_guess_format fail");
    
        return JNI_FALSE;
    
    }
    

    
    fmt_context->oformat = ofmt;
    
    LOGI("creating video stream");
    
    video_stream = av_new_stream(fmt_context, 0);
    

    
    if (enable_audio) {
    
        LOGI("creating audio stream");
    
        audio_stream = av_new_stream(fmt_context, 1);
    
    }
    

    
    // Open Video Codec.
    
    // ======================
    
    AVCodec *video_codec = avcodec_find_encoder(AV_CODEC_ID_H264);
    
    if (!video_codec) {
    
        LOGI("Did not find the video codec");
    
        return JNI_FALSE;  // leak!
    
    } else {
    
        LOGI("Video codec found!");
    
    }
    
    AVCodecContext *video_codec_ctx = video_stream->codec;
    
    video_codec_ctx->codec_id = video_codec->id;
    
    video_codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO;
    
    video_codec_ctx->level = 31;
    

    
    video_codec_ctx->width = width;
    
    video_codec_ctx->height = height;
    
    video_codec_ctx->pix_fmt = PIX_FMT_YUV420P;
    
    video_codec_ctx->rc_max_rate = 0;
    
    video_codec_ctx->rc_buffer_size = 0;
    
    video_codec_ctx->gop_size = 12;
    
    video_codec_ctx->max_b_frames = 0;
    
    video_codec_ctx->slices = 8;
    
    video_codec_ctx->b_frame_strategy = 1;
    
    video_codec_ctx->coder_type = 0;
    
    video_codec_ctx->me_cmp = 1;
    
    video_codec_ctx->me_range = 16;
    
    video_codec_ctx->qmin = 10;
    
    video_codec_ctx->qmax = 51;
    
    video_codec_ctx->keyint_min = 25;
    
    video_codec_ctx->refs = 3;
    
    video_codec_ctx->trellis = 0;
    
    video_codec_ctx->scenechange_threshold = 40;
    
    video_codec_ctx->flags |= CODEC_FLAG_LOOP_FILTER;
    
    video_codec_ctx->me_method = ME_HEX;
    
    video_codec_ctx->me_subpel_quality = 6;
    
    video_codec_ctx->i_quant_factor = 0.71;
    
    video_codec_ctx->qcompress = 0.6;
    
    video_codec_ctx->max_qdiff = 4;
    
    video_codec_ctx->time_base.den = 10;
    
    video_codec_ctx->time_base.num = 1;
    
    video_codec_ctx->bit_rate = 3200 * 1000;
    
    video_codec_ctx->bit_rate_tolerance = 0;
    
    video_codec_ctx->flags2 |= 0x00000100;
    

    
    fmt_context->bit_rate = 4000 * 1000;
    

    
    av_opt_set(video_codec_ctx, "partitions", "i8x8,i4x4,p8x8,b8x8", 0);
    
    av_opt_set_int(video_codec_ctx, "direct-pred", 1, 0);
    
    av_opt_set_int(video_codec_ctx, "rc-lookahead", 0, 0);
    
    av_opt_set_int(video_codec_ctx, "fast-pskip", 1, 0);
    
    av_opt_set_int(video_codec_ctx, "mixed-refs", 1, 0);
    
    av_opt_set_int(video_codec_ctx, "8x8dct", 0, 0);
    
    av_opt_set_int(video_codec_ctx, "weightb", 0, 0);
    

    
    if (fmt_context->oformat->flags &amp; AVFMT_GLOBALHEADER)
    
        video_codec_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
    

    
    LOGI("Opening video codec");
    
    AVDictionary *vopts = NULL;
    
    av_dict_set(&amp;vopts, "profile", "main", 0);
    
    //av_dict_set(&amp;vopts, "vprofile", "main", 0);
    
    av_dict_set(&amp;vopts, "rc-lookahead", 0, 0);
    
    av_dict_set(&amp;vopts, "tune", "film", 0);
    
    av_dict_set(&amp;vopts, "preset", "ultrafast", 0);
    
    av_opt_set(video_codec_ctx->priv_data, "tune", "film", 0);
    
    av_opt_set(video_codec_ctx->priv_data, "preset", "ultrafast", 0);
    
    av_opt_set(video_codec_ctx->priv_data, "tune", "film", 0);
    
    int open_res = avcodec_open2(video_codec_ctx, video_codec, &amp;vopts);
    
    if (open_res &lt; 0) {
    
        LOGI("Error opening video codec: %i", open_res);
    
        return JNI_FALSE;   // leak!
    
    }
    

    
    // Open Audio Codec.
    
    // ======================
    

    
    if (enable_audio) {
    
        AudioBuffer_Clear();
    
        audio_sample_rate = audio_sample_rate_param;
    
        AVCodec *audio_codec = avcodec_find_encoder(AV_CODEC_ID_AAC);
    
        if (!audio_codec) {
    
            LOGI("Did not find the audio codec");
    
            return JNI_FALSE;  // leak!
    
        } else {
    
            LOGI("Audio codec found!");
    
        }
    
        AVCodecContext *audio_codec_ctx = audio_stream->codec;
    
        audio_codec_ctx->codec_id = audio_codec->id;
    
        audio_codec_ctx->codec_type = AVMEDIA_TYPE_AUDIO;
    
        audio_codec_ctx->bit_rate = 128000;
    
        audio_codec_ctx->bit_rate_tolerance = 16000;
    
        audio_codec_ctx->channels = 1;
    
        audio_codec_ctx->profile = FF_PROFILE_AAC_LOW;
    
        audio_codec_ctx->sample_fmt = AV_SAMPLE_FMT_FLT;
    
        audio_codec_ctx->sample_rate = 44100;
    

    
        LOGI("Opening audio codec");
    
        AVDictionary *opts = NULL;
    
        av_dict_set(&amp;opts, "strict", "experimental", 0);
    
        open_res = avcodec_open2(audio_codec_ctx, audio_codec, &amp;opts);
    
        LOGI("audio frame size: %i", audio_codec_ctx->frame_size);
    

    
        if (open_res &lt; 0) {
    
            LOGI("Error opening audio codec: %i", open_res);
    
            return JNI_FALSE;   // leak!
    
        }
    
    }
    

    
    const jbyte *url = (*env)->GetStringUTFChars(env, rtmp_url, NULL);
    

    
    // Point to an output file
    
    if (!(ofmt->flags &amp; AVFMT_NOFILE)) {
    
        if (avio_open(&amp;fmt_context->pb, url, URL_WRONLY) &lt; 0) {
    
            LOGI("ERROR: Could not open file %s", url);
    
            return JNI_FALSE;  // leak!
    
        }
    
    }
    
    (*env)->ReleaseStringUTFChars(env, rtmp_url, url);
    

    
    LOGI("Writing output header.");
    
    // Write file header
    
    if (avformat_write_header(fmt_context, NULL) != 0) {
    
        LOGI("ERROR: av_write_header failed");
    
        return JNI_FALSE;
    
    }
    

    
    pts = 0;
    
    last_audio_pts = 0;
    
    audio_samples_written = 0;
    

    
    // Initialize buffers for UV format conversion
    
    int frame_size = video_codec_ctx->width * video_codec_ctx->height;
    
    u_buf = (unsigned char *) av_malloc(frame_size / 4);
    
    v_buf = (unsigned char *) av_malloc(frame_size / 4);
    

    
    LOGI("ffmpeg encoding init done");
    
    return JNI_TRUE;
    
}
    

    
JNIEXPORT void JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_shutdown(JNIEnv
    
*env,
    
jobject thiz
    
) {
    
av_write_trailer(fmt_context);
    
avio_close(fmt_context
    
->pb);
    
avcodec_close(video_stream
    
->codec);
    
if (enable_audio) {
    
avcodec_close(audio_stream
    
->codec);
    
}
    
av_free(fmt_context);
    
av_free(u_buf);
    
av_free(v_buf);
    

    
fmt_context = NULL;
    
u_buf = NULL;
    
v_buf = NULL;
    
}
    

    
JNIEXPORT jint JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_encodeVideoFrame(JNIEnv
    
*env,
    
jobject thiz,
    
        jbyteArray
    
yuv_image) {
    
int yuv_length = (*env)->GetArrayLength(env, yuv_image);
    
unsigned char *yuv_data = (*env)->GetByteArrayElements(env, yuv_image, 0);
    

    
AVCodecContext *video_codec_ctx = video_stream->codec;
    
//LOGI("Yuv size: %i w: %i h: %i", yuv_length, video_codec_ctx->width, video_codec_ctx->height);
    

    
int frame_size = video_codec_ctx->width * video_codec_ctx->height;
    

    
const unsigned char *uv = yuv_data + frame_size;
    

    
// Convert YUV from NV12 to I420. Y channel is the same so we don't touch it,
    
// we just have to deinterleave UV.
    
for (
    
int i = 0;
    
i &lt; frame_size / 4; i++) {
    
v_buf[i] = uv[i * 2];
    
u_buf[i] = uv[i * 2 + 1];
    
}
    

    
AVFrame source;
    
memset(&amp;source, 0, sizeof(AVFrame));
    
source.data[0] =
    
yuv_data;
    
source.data[1] =
    
u_buf;
    
source.data[2] =
    
v_buf;
    
source.linesize[0] = video_codec_ctx->
    
width;
    
source.linesize[1] = video_codec_ctx->width / 2;
    
source.linesize[2] = video_codec_ctx->width / 2;
    

    
// only for bitrate regulation. irrelevant for sync.
    
source.
    
pts = pts;
    
pts++;
    

    
int out_length = frame_size + (frame_size / 2);
    
unsigned char *out = (unsigned char *) av_malloc(out_length);
    
int compressed_length = avcodec_encode_video(video_codec_ctx, out, out_length, &amp;source);
    

    
(*env)->
    
ReleaseByteArrayElements(env, yuv_image, yuv_data,
    
0);
    

    
// Write to file too
    
if (compressed_length > 0) {
    
AVPacket pkt;
    
av_init_packet(&amp;pkt);
    
pkt.
    
pts = last_audio_pts;
    
if (video_codec_ctx->coded_frame &amp;&amp; video_codec_ctx->coded_frame->key_frame) {
    
pkt.flags |= 0x0001;
    
}
    
pkt.
    
stream_index = video_stream->index;
    
pkt.
    
data = out;
    
pkt.
    
size = compressed_length;
    
if (
    
av_interleaved_write_frame(fmt_context,
    
&amp;pkt) != 0) {
    
LOGI("Error writing video frame");
    
}
    
} else {
    
LOGI("??? compressed_length &lt;= 0");
    
}
    

    
last_audio_pts++;
    

    
av_free(out);
    
return
    
compressed_length;
    
}
    

    
JNIEXPORT jint JNICALL Java_com_ephronsystem_mobilizerapp_Ffmpeg_encodeAudioFrame(JNIEnv
    
*env,
    
jobject thiz,
    
        jshortArray
    
audio_data,
    
jint length
    
) {
    
if (!enable_audio) {
    
return 0;
    
}
    

    
short *audio = (*env)->GetShortArrayElements(env, audio_data, 0);
    
//LOGI("java audio buffer size: %i", length);
    

    
AVCodecContext *audio_codec_ctx = audio_stream->codec;
    

    
unsigned char *out = av_malloc(128000);
    

    
AudioBuffer_Push(audio, length
    
);
    

    
int total_compressed = 0;
    
while (
    

    
AudioBuffer_Size()
    

    
>= audio_codec_ctx->frame_size) {
    
AVPacket pkt;
    
av_init_packet(&amp;pkt);
    

    
int compressed_length = avcodec_encode_audio(audio_codec_ctx, out, 128000,
    
                                             AudioBuffer_Get());
    

    
total_compressed +=
    
compressed_length;
    
audio_samples_written += audio_codec_ctx->
    
frame_size;
    

    
int new_pts = (audio_samples_written * 1000) / audio_sample_rate;
    
if (compressed_length > 0) {
    
pkt.
    
size = compressed_length;
    
pkt.
    
pts = new_pts;
    
last_audio_pts = new_pts;
    
//LOGI("audio_samples_written: %i  comp_length: %i   pts: %i", (int)audio_samples_written, (int)compressed_length, (int)new_pts);
    
pkt.flags |= 0x0001;
    
pkt.
    
stream_index = audio_stream->index;
    
pkt.
    
data = out;
    
if (
    
av_interleaved_write_frame(fmt_context,
    
&amp;pkt) != 0) {
    
LOGI("Error writing audio frame");
    
}
    
}
    
AudioBuffer_Pop(audio_codec_ctx
    
->frame_size);
    
}
    

    
(*env)->
    
ReleaseShortArrayElements(env, audio_data, audio,
    
0);
    

    
av_free(out);
    
return
    
total_compressed;
    
}

  • FFMPEG to create an MPEG-DASH stream with VP8

    24 avril 2017, par Kenneth Worden

    I’m trying to use FFMPEG to stream a live video feed from my webcam /dev/video0. Following scattered tutorials and scarce documentation (is this a known problem for the encoding community ?) I arrived at the following bash script :

    #!/bin/bash
    

    
ffmpeg \
    
    -y \
    
    -f v4l2 \
    
        -i /dev/video0 \
    
        -s 640x480 \
    
        -input_format mjpeg \
    
        -r 24 \
    
    -map 0:0 \
    
    -pix_fmt yuv420p \
    
    -codec:v libvpx \
    
        -s 640x480 \
    
        -threads 4 \
    
        -b:v 50k \
    
        -tile-columns 4 \
    
        -frame-parallel 1 \
    
        -keyint_min 24 -g 24 \
    
    -f webm_chunk \
    
        -header "stream.hdr" \
    
        -chunk_start_index 1 \
    
    stream_%d.chk &amp;
    

    
sleep 2
    

    
ffmpeg \
    
    -f webm_dash_manifest -live 1 \
    
    -i stream.hdr \
    
    -c copy \
    
    -map 0 \
    
    -f webm_dash_manifest -live 1 \
    
        -adaptation_sets "id=0,streams=0" \
    
        -chunk_start_index 1 \
    
        -chunk_duration_ms 1000 \
    
        -time_shift_buffer_depth 30000 \
    
        -minimum_update_period 60000 \
    
    stream_manifest.mpd

    When I run this script, my webcam light turns on, the stream.hdr and stream_manifest.mpd files are written, and chunks start to be created (i.e. stream_1.chk, stream_2.chk, etc...). However, FFMPEG throws the following error :

    Could not write header for output file #0 (incorrect codec parameters
     ?) : Invalid data found when processing input

    I will explain what I think I am doing with this script, and hopefully this will expose any errors in my thinking.

    First, we invoke FFMPEG to use Video for Linux 2 (v4l2) to read from my webcam (/dev/video0) of a resolution 640x480. The input format is mjpeg with a framerate of 24fps.

    I then declare that FFMPEG should "map" (copy) the video stream output by v4l2 to a file. I specify the pixel format (YUV420P) and use libvpx (VP8 encoding) to encode the video stream. I set the size to be 640x480, use 4 threads, set the bitrate to be 50kbps, do some magic with tile-columns and frame-parallel options, and set the I-frames to be 24 frames apart.

    I then create a stream.hdr file. The starting index is 1. This command continues to run infinitely until I kill it, grabbing new video from my webcam and outputting it into chunks.

    I then sleep for 2 seconds to give the previous command time to generate a header file.

    And that’s really it. The next invocation of FFMPEG simply creates the MPEG-DASH manifest file given the header generated in the previous step.

    So what’s going on ? Why can I not view the video in a web browser (I’m using Dash.js) ? I serve the manifest, header, and chunks on a Node.js server so that trivial issue is not the problem.

    Edit : Here is my full console output.

    ffmpeg version 3.0.7-0ubuntu0.16.10.1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 6.2.0 (Ubuntu 6.2.0-5ubuntu12) 20161005
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.10.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-chromaprint --enable-libx264
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
[video4linux2,v4l2 @ 0x55847e244ea0] The driver changed the time per frame from 1/24 to 1/30
    
[mjpeg @ 0x55847e245c00] Changing bps to 8
    
Input #0, video4linux2,v4l2, from '/dev/video0':
    
  Duration: N/A, start: 64305.102081, bitrate: N/A
    
    Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
    
Codec AVOption frame-parallel (Enable frame parallel decodability features) specified for output file #0 (stream_%d.chk) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    
Codec AVOption tile-columns (Number of tile columns to use, log2) specified for output file #0 (stream_%d.chk) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    
[swscaler @ 0x55847e24b720] deprecated pixel format used, make sure you did set range correctly
    
[libvpx @ 0x55847e248a20] v1.5.0
    
Output #0, webm_chunk, to 'stream_%d.chk':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
    Stream #0:0: Video: vp8 (libvpx), yuv420p, 640x480, q=-1--1, 50 kb/s, 30 fps, 30 tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc57.24.102 libvpx
    
    Side data:
    
      unknown side data type 10 (24 bytes)
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> vp8 (libvpx))
    
Press [q] to stop, [?] for help
    
frame=   21 fps=0.0 q=0.0 size=N/A time=00:00:00.70 bitrate=N/A dup=5 drop=frame=   36 fps= 35 q=0.0 size=N/A time=00:00:01.20 bitrate=N/A dup=5 drop=frame=   51 fps= 33 q=0.0 size=N/A time=00:00:01.70 bitrate=N/A dup=5 drop=ffmpeg version 3.0.7-0ubuntu0.16.10.1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 6.2.0 (Ubuntu 6.2.0-5ubuntu12) 20161005
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.10.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-chromaprint --enable-libx264
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, webm_dash_manifest, from 'stream.hdr':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      webm_dash_manifest_file_name: stream.hdr
    
      webm_dash_manifest_track_number: 1
    
Output #0, webm_dash_manifest, to 'stream_manifest.mpd':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
    Stream #0:0: Video: vp8, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      webm_dash_manifest_file_name: stream.hdr
    
      webm_dash_manifest_track_number: 1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
    
frame=   67 fps= 33 q=0.0 size
    
frame=   82 fps= 32 q=0.0 size=N/A time=00:00:02.73 bitrate=N/A dup=5 drop=
    
frame=   97 fps= 32 q=0.0 size=N/A time=00:00:03.23 bitrate=N/A dup=5 drop=
    
frame=  112 fps= 32 q=0.0 size=N/A time=00:00:03.73 bitrate=N/A dup=5 ...

  • Incorrect syntax using FFmpeg

    25 avril 2017, par Halid Kyazim

    Hello guys i am tring to convert videos using FFmpeg...

    1. I moved ffmpeg.exe in same folder with upload.php

    2. I tryed this codes in upload.php :

      $randname = (rand(0,1000));
      
$file_data=date("d-m-Y-H-i-s");
      
$file_name=$file_data.$randname;
      
move_uploaded_file($file_tmp,"vidconvert/".$file_name);
      
exec (ffmpeg -i vidconvert/.$file_name videos/.$file_name.mp4);
      
echo "Success";

    3. I want to get the file in vidconvert folder, and copy converted video to videos folder

    Note : when i check the vidconfert folder, the file is uploaded succesfully

Navigation